Internal-combustion engine



July fl', 1925.

w. M. QUICK INTERNAL comusTmN ENGINE Filed May 29. 1920 Patented July 7,192.5.

UNITED STATES PATENT oFFlcE.

WILLIAM M. QUICK, OF HUNTSVILLE, 'ALA'.BALIA, ASSIGNOR OF NINE-FORTIETHSTO H. STRONG- AND L. G. EVERETT, PARTNERS UNDER NAME 0F EVERETT &STRONG, NINE ONE-HUNDREDTHS TO R. IC. RANII), NINE ONE-HUNDREDTHS T0 W.R. ROUSSEAU, NINE TWO-HUNDREDTHS TO A. PERRY, ONE- TENTH TO GEORGE P.COOPEB, ALL'OF HUNTSVILLE, ALARMA.

INTERNAL-COMBUSTION ENGINE.

Application led May 29, 1920. Serial No. 385,163.

To all whom t may concern:

Be it known that I, WILLIAM M. QUICK, citizen of the United States,residing at Huntsville, in the county of Madison and State of Alabama,have invented certain newl and useful Improvements in Internal-Combustion En ines; and I do hereby declare the following to be a full,clear, andl exact description of the invention, such as willenablevothers skilled in the art to which it appertains to make and usethe same.

This invention relates to improvements particularly in internalcombustion engines.

out my invention it is 'Ihe invention has for` its object, among otherthings, principally to utilize or re-use a part of the exhaust gaseswhich are characterized for the retention of a certain amount ofcombustible matter, as the same is taken from the exhaust-manifold anddelivered to thel carbureter for the ultimate reductionin the'amount of`asoline used. As advantages of this metho of carrying ossible to greatlyincrease lubricatin e ciency, eliminate carbon-deposits, stic yvalve-guides, frozen piston-rings, scored cylinders, dilution -of oil inthe crank-case, and preventgases passing the piston. VVhile providingfor thereduction in the consumption of gasoline, I obtain the sameamount of power-generating eiiiciency. Also it is observed that by mymethod of introducing hot exhaust gasesv 4from the exhaust manifold tothe carburetor a more perfect combustible mixture is ob- .tained thanhas heretofore been the case, this resulting from the breaking up andcausing complete vaporization of the wet particles of the gasoline inthe carbureter.

The invention consists therefore in certain features of construction,substantially as hereinafter more fully disclosed and parl l ticularlypointed out in the appended claim.

The accompanying drawings illustrate the preferred embodiment of myinvention or .one example thereof, wherein it will be un derstood thatvarious changes and modifications as relate to the detailed constructionand arrangement of parts, may be made without. departing from the spiritof my invention as covered by the claims, and in which drawings- Fig. 1is side elevation of an internal combustion engine, showing 'myinventionas applied thereto in--practical use'.

Fig. 2 is a fragmental detailed sectional view showing more particularlythe air intake for the carbureter and the butterfly valves 'with theiroperating means.

As characteristic features of my invention, I employ in connection withexhaust manifold 1 of an internal combustion engine and the intakemanifold 2 thereof, together with 'a carburetor 3, a pipe connection 4,leading from said exhaust manifold toy said'A carbureter, said pipebeing let into the open end of the latter, and bein much less indiameter than the intake o said carbureter. Pipe 4 is adapted to take aportion of the exhaust gases from the exhaust-manifold and deliver thesame into the carbureter, the amount of said gases being restrictedwithin certain limits in order that only al limited or prescribed-amountof such gases may be` introduced into the carbureter, so ,that thegasoline vapor from the carbureter may e delivered throu h a pipe 5, ina hot condition,`into the inta e-manifold 2, said pipe effectingconnection between the carbureter and intake-manifold.

It will be observed that, by this means the gasoline vapor will be freedof moisture, also. carbon deposits, while other objections such assticky valve-guides, frozen pistonring's, scored cylinders, dilution of011 1n the crank-case, will be eliminated and gases be prevented frompassing the piston; also by this arrangement provlsion will be made forthe. reduction in the consumption of the gasoline, yet the samevwillretain its powergenerating efficiency. Also it 1s observed that by meansof this method of introducing hot exhaust gases from theexhaustmanifoldA to the carbureter, a more perfect combustible mixtureis obtained than has heretofore been the case, this resulting from thebreaking up and causing more perfect vaporization of the wet or moistparticles o f the gasoline in the carbureter. Also by means of thisarrangement, combustible matter in the exhaust-manifold and exhaustgases will be utilized, or re-used, in vaporizing the gasoline vaporspassing from the carbureter, whereby the gasoline Will be freed of'impurities or unutilizable particles and the quantity of gasoline thusused be economized or lessened.

Within the intake pipe 'of the carbureter is arranged a butterfly valve6, and similarly arranged in the pipe 4 is a like valve said valvesbeing co'jointly operable by means of levers 8, and 9 and the rod 10,for controlling the supply of air and hot gases to the carbureter, thecarbureter being supplied with gasoline by pipe 11. In the pipe 5 at theintake manifold end, is preferably arranged what may be called a screen12 to prevent the back-firing of the gas.

From the foregoing description of the construction and operation of myinvention, it is believed that the same will be readily appreciated orunderstood by those familiar with this class of device.

Having thus described my invention, I

' claim as my invention and desire to secure by Letters Patent:

In an internal combustion engine, the combination with an exhaustmanifold and an air-intake manifold of a carburetor provided with an airintake and means for delivering part of thehot gases from said exhaustmanifold into said air intake, said means comprising a tubular memberhaving one end opening into said exhaust manifold, the other end beingof smaller diameter than said air-intake and inserted freely therein,the Walls of said tubular member being arranged in parallelism and inconcentric relation With the Walls of the air-intake, whereby the airentering said air-intake is provided With a core of hot exhaust gases, aValve Wit-hin said tubular member and adjacent the open end thereof, avalve within the air-intake adjacent the open end thereof and beingarranged in prox-- ture.

WILLIAM M. QUICK.

